Kubera Yantra (statue)

The Shree Dhanvarsha Kubera Yantra Chowki is a ritual platform (chowki = base/altar) on which a yantra dedicated to Kubera, the god of wealth in the Hindu tradition, is installed.

It features all the auspicious planetary stones and their Bija Mantras, plus a statue of Kubera, who is the treasurer of the gods.
“Dhanvarsha” means “rain of wealth.”
The yantra is a sacred diagram that attracts and stabilizes prosperity energy; it is made of gilded metal.
It is used for:
Attracting economic prosperity
Financial stability
Business growth
Protecting income
Removing money-related blockages
It is considered a symbolic tool for harmonizing the energy of wealth.

Where to place it
According to Vastu Shastra: North direction (Kubera's direction) – ideal
or North-East
on a clean altar or raised shelf;
never directly on the ground,
preferably facing inwards towards the house.

How to use it (traditional activation)
Clean it with a clean cloth
Apply a small dot of kumkum or sandalwood
Offer flowers or rice
Light incense or an oil lamp
Chant the Kubera mantra 11, 21, or 108 times
Common Kubera Mantra:
ॐ श्रीं ह्रीं क्लीं श्री कुबेराय नमः
Om Shreem Hreem Kleem Shri Kuberaya Namah
(Invocation to Kubera for prosperity and abundance)
Alternatively:
ॐ यक्षाय कुबेराय वैश्रवणाय धनधान्याधिपतये नमः
Om Yakshaya Kuberaya Vaishravanaya Dhanadhanyadhipataye Namah
(Salutations to the Lord of wealth and abundance)

It is best activated on Friday (a day associated with prosperity),
during Diwali,
during the waxing moon,
at the start of a new venture.